Transport vehicle

Abstract

The utility model discloses a transport vehicle, and belongs to the technical field of battery pole piece production. The transport vehicle comprises a vehicle frame main body, a plurality of wheels, at least one bearing part and a plurality of magnetic attraction devices, the frame body comprises a bottom frame and a support fixedly connected with one side of the bottom frame. The wheels are fixed to the side, away from the support, of the bottom frame. The at least one bearing part is fixed on the bracket and is used for bearing a pole piece roll material; the multiple magnetic attraction devices are connected with the frame body, and at least part of the magnetic attraction devices are distributed on the bottom frame. According to the transport vehicle, a magnetic field covering area can be formed on the periphery of the transport vehicle through the multiple magnetic attraction devices arranged on the vehicle frame body of the transport vehicle, after the pole piece coil stock is loaded to the transport vehicle, the pole piece coil stock is located in the magnetic field covering area, and in the process that the pole piece coil stock is transported into the drying oven to be baked, the magnetic attraction devices can adsorb metal dust; the cleanliness of the pole piece and the quality of a final product are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pole piece production, in particular to a transport vehicle. BACKGROUND

[0002] In the production process of lithium batteries, electrode slurry is coated on the current collector (generally copper foil or aluminum foil) to form a battery pole piece, and then the pole piece is wound to form a roll, and then the pole piece is baked. Pole piece baking is a key step to ensure that the moisture content of the pole piece meets the process requirements.

[0003] The baking process is usually carried out in a closed oven, which adjusts air circulation through an internal and external circulation mechanism to ensure baking efficiency and uniformity. However, the air inlet and outlet of the oven are easily rusted due to long-term exposure to high temperature, humidity and corrosive environment. These rust marks may fall off and form metal dust during the baking process.

[0004] In addition, the surface or packaging materials carried by the pole piece before being transported to the oven may have attached small metal dust / particles, which may adhere to the pole piece during the baking process, causing contamination of the pole piece, and thus affecting the performance, safety and cycle life of the battery. INNOVATION CONTENT

[0005] The embodiment of the present application provides a transport vehicle. The problem of contamination of the battery pole piece by metal dust during transportation to the oven for baking can be solved, and the technical scheme is as follows:

[0006] On the one hand, a transport vehicle is provided, which comprises a vehicle frame body, a plurality of wheels, at least one carrying part, and a plurality of magnetic attraction devices.

[0007] The vehicle frame body comprises a chassis and a support fixedly connected to one side of the chassis.

[0008] The plurality of wheels are fixed to the side of the chassis away from the support.

[0009] The at least one carrying part is fixed to the support, and the carrying part is used for carrying the pole piece roll.

[0010] The plurality of magnetic attraction devices are connected with the vehicle frame body, and at least part of the plurality of magnetic attraction devices are distributed on the chassis.

[0011] Optionally, the plurality of magnetic attraction devices comprise a plurality of first magnetic attraction devices distributed on the chassis and a plurality of second magnetic attraction devices distributed on the support.

[0012] Optionally, the plurality of first magnetic attraction devices are divided into at least one group of first magnetic attraction devices; the transport vehicle further comprises at least one support plate, the at least one support plate corresponds to at least one group of the first magnetic attraction devices, each first magnetic attraction device in a group of the first magnetic attraction devices is fixed on the corresponding support plate, and the support plate is detachably connected with the chassis.

[0013] The support plate is closer to the support frame than the first magnetic device fixed on the support plate.

[0014] Optionally, for a plurality of first magnetic attraction devices in any group of the first magnetic attraction devices, the plurality of first magnetic attraction devices are arranged along a first direction.

[0015] The transport vehicle further comprises at least one first fixing seat and at least one second fixing seat, the at least one first fixing seat and the at least one second fixing seat correspond to the at least one support plate, and the at least one first fixing seat and the at least one second fixing seat are connected with the chassis.

[0016] For any support plate, and the corresponding first fixing seat and the corresponding second fixing seat, the first fixing seat and the second fixing seat are arranged in the first direction, one end of the support plate is hung on the first fixing seat, and the other end of the support plate is hung on the second fixing seat.

[0017] Optionally, one end of the support plate has a first mortise and tenon structure, and the other end of the support plate has a second mortise and tenon structure.

[0018] The first fixing seat has a third mortise and tenon structure matched with the first mortise and tenon structure, and the second fixing seat has a fourth mortise and tenon structure matched with the second mortise and tenon structure.

[0019] One end of the support plate is hung on the first fixing seat through cooperation of the first mortise and tenon structure and the third mortise and tenon structure, and the other end of the support plate is hung on the second fixing seat through cooperation of the second mortise and tenon structure and the fourth mortise and tenon structure.

[0020] Optionally, any one of the first fixing seat and the second fixing seat comprises a connecting part detachably connected with the chassis and a supporting part fixedly connected with the connecting part, the connecting part is closer to the support frame than the supporting part, and the supporting part has a hollow mounting cavity.

[0021] The third mortise and tenon structure or the fourth mortise and tenon structure is fixed in the hollow mounting cavity.

[0022] Optionally, the support plate comprises: a first plate body and a second plate body arranged in the first direction, a first end of the first plate body is detachably connected with a first end of the second plate body, a second end of the first plate body is hung on the first fixing seat, and a second end of the second plate body is hung on the second fixing seat.

[0023] Part of the first magnetic attraction devices in the group of first magnetic attraction devices corresponding to the support plate are fixed on the first plate body, and the other part of the first magnetic attraction devices are fixed on the second plate body.

[0024] Optionally, the transport vehicle further comprises: a plurality of third fixing seats detachably connected with the support frame, the plurality of third fixing seats correspond to the plurality of second magnetic attraction devices, and each second magnetic attraction device is fixed on one third fixing seat.

[0025] Optionally, the third fixing seat has a plurality of clamping claws on a side away from the second magnetic attraction device, and the third fixing seat is clamped on the support frame through the plurality of clamping claws.

[0026] Optionally, the magnetic attraction device comprises a permanent magnet or an electromagnet.

[0027] The technical scheme provided by the embodiment of the application has the following beneficial effects:

[0028] Through the plurality of magnetic attraction devices arranged on the frame body of the transport vehicle, a magnetic field coverage area can be formed around the transport vehicle. After the pole piece roll material is loaded onto the transport vehicle, the pole piece roll material is located in the magnetic field coverage area, and the magnetic attraction device can adsorb the metal dust. Therefore, during the process of loading the pole piece roll material onto the transport vehicle, moving the transport vehicle to the oven, and baking in the oven, the magnetic attraction device can adsorb the metal powder, prevent the metal dust from falling on the pole piece, and avoid the pollution of the pole piece. In this way, the cleanliness of the pole piece and the quality of the final product can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The schematic view of the transport vehicle in the oven provided by the embodiment of the application;

[0031] Figure 2 The structural schematic view of the transport vehicle provided by the embodiment of the application;

[0032] Figure 3This is a schematic diagram of another transport vehicle provided in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the support plate and a set of first magnetic attraction devices provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the first fixing seat provided in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the second fixing seat provided in an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the support plate provided in an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of the second magnetic attraction device and the third fixing base provided in the embodiments of this application. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0039] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the transport vehicle inside the drying oven provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the transport vehicle provided in the embodiments of this application. Figure 3 This is a schematic diagram of another transport vehicle provided in an embodiment of this application. Figure 1 and Figure 2 As shown, this application provides a transport vehicle 000, which may include: a frame body 100, a plurality of wheels 200, at least one load-bearing part 300 and a plurality of magnetic attraction devices 400.

[0040] The frame body 100 may include: a base frame 120, and a bracket 110 fixedly connected to one side of the base frame 120.

[0041] Multiple wheels 200 are fixed to the side of the base frame 120 away from the bracket 110.

[0042] At least one support portion 300 is fixed on the bracket 110, and the support portion 300 is used to support the electrode roll 001.

[0043] Multiple magnetic devices 400 are connected to the frame body 100, and at least some of the magnetic devices of the multiple magnetic devices 400 are distributed on the base frame 120.

[0044] The frame body 100 can be designed symmetrically (e.g., Figure 1The bracket 110 is centrally fixedly connected to the base frame 120, and the at least one bearing portion 300 can also be symmetrically arranged on both sides of the bracket 110. The pole piece roll material 001 can include a roll shaft and a pole piece wound on the roll shaft, and the bearing portion 300 can extend into the roll shaft to bear the roll shaft.

[0045] As shown in Figure 1 The air inlet 01 and the air outlet 02 of the oven 00 are generally located below the oven 00, and the metal powder peeled off from the oven 00 settles at the bottom of the oven 00 when the oven 00 is not blowing, so that the metal powder on the ground or the bottom of the oven 00 can be lifted by the airflow during the movement of the transport vehicle 000 into the oven 00, and the metal powder can be adsorbed by the magnetic attraction device 400 distributed on the base frame 120. During the baking process in the oven 00, the metal powder mixed in the airflow formed between the air inlet 01 and the air outlet 02 can also be adsorbed by the magnetic attraction device 400 distributed on the base frame 120.

[0046] In summary, by arranging a plurality of magnetic attraction devices on the frame body of the transport vehicle, a magnetic field coverage area can be formed around the transport vehicle. After the pole piece roll material is loaded onto the transport vehicle, the pole piece roll material is located in the magnetic field coverage area, and the magnetic attraction device can adsorb the metal dust. Therefore, during the process of loading the pole piece roll material onto the transport vehicle, moving the transport vehicle to the oven, and baking in the oven, the magnetic attraction device can adsorb the metal powder to prevent the metal dust from falling on the pole piece and avoid the pollution of the pole piece. In this way, the cleanliness of the pole piece and the quality of the final product can be improved.

[0047] In some possible implementations, the magnetic attraction device 400 can include a permanent magnet or an electromagnet. In the case where the magnetic attraction device 400 includes a permanent magnet, a plurality of magnetic attraction devices 400 can be detachably connected to the frame body 100. The operator can selectively detach the magnetic attraction device 400 according to the baking temperature corresponding to the type of pole piece (positive pole piece or negative pole piece) and then bake the pole piece roll material 001.

[0048] For example, the demagnetization temperature of commonly used magnets is as follows: ferrite magnet: 80-100℃, neodymium iron boron magnet: 60-200℃, samarium cobalt magnet: 250-350℃; and the higher the demagnetization temperature of the magnet, the higher the cost. Taking a common ferrite magnet as an example, the baking temperature of the negative electrode sheet of part of the battery electrode sheet is higher than 100℃, and in the case of using a ferrite magnet in the magnetic attraction device 400 and baking the negative electrode sheet, the magnetic attraction device 400 can be disassembled before heating in the oven 00. The oven 00 can be set to a non-heating blowing cycle for a certain period of time, at which time the transport vehicle 000 loaded with the magnetic attraction device 400 blows in the oven 00, and the magnetic attraction device 400 can attract metal powder in the oven 00. Since the amount of metal powder is limited, after a certain period of non-heating blowing cycle, there is no metal powder in the oven 00, and no new metal powder is added in one baking cycle. Therefore, after the non-heating blowing cycle, the operator can disassemble the magnetic attraction device 400 in the oven 00, and then heat it. After heating and cooling, the operator can also load the magnetic attraction device 400 into the transport vehicle 000 in the oven 00, and move the transport vehicle 000 to the area of the subsequent process, so as to also attract the metal powder that may exist in this moving process. In addition, compared with the high cost of high-temperature-resistant permanent magnets or electromagnets, the use of detachable ordinary permanent magnets in the magnetic attraction device 400 can reduce the cost of the magnetic attraction device 400.

[0049] For example, since the oven 00 can accommodate a limited number of transport vehicles 000 at a time, or the transport vehicle 000 can not need the magnetic attraction device 400 to attract metal powder when transporting the electrode sheet roll 001 in processes other than baking, it is not necessary to configure a set of magnetic attraction device 400 for each transport vehicle 000. When needed, the magnetic attraction device 400 can be installed on the transport vehicle 000, which can reduce the cost problem brought by the magnetic attraction device 400.

[0050] In some possible implementations, as shown in Figure 3 The plurality of magnetic attraction devices 400 can include a plurality of first magnetic attraction devices 401 distributed on the chassis 120 and a plurality of second magnetic attraction devices 402 distributed on the support 110.

[0051] The second magnetic attraction devices 402 distributed on the support 110 can attract metal dust on the surface of the electrode sheet roll 001 or the packaging material carried thereby, and can also attract metal powder in the air during the movement of the transport vehicle 000 to the oven 00. During the baking process in the oven 00, the airflow in the oven 00 also flows to the surface of the electrode sheet roll 001, and the second magnetic attraction devices 402 distributed on the support 110 can also attract this part of the metal powder.

[0052] Please refer toFigure 3 With Figure 4 , Figure 4 is a structural diagram of a support plate and a set of first magnetic attraction devices provided by the embodiments of the present application. In some implementable manners, the plurality of first magnetic attraction devices 401 can be divided into at least one set of first magnetic attraction devices 401; the transport vehicle 000 can further include at least one support plate 500, the at least one support plate 500 corresponding to the at least one set of first magnetic attraction devices 401, each first magnetic attraction device 401 in the set of first magnetic attraction devices 401 being fixed on the corresponding support plate 500, and the support plate 500 being detachably connected with the chassis 120; wherein the support plate 500 is closer to the bracket 110 relative to the first magnetic device fixed on the support plate 500, that is, as shown in Figure 3 , the first magnetic device can be located below the support plate 500, closer to the ground or the bottom of the oven 000, which is conducive to adsorbing the metal powder settled below the transport vehicle 000.

[0053] Exemplarily, in the second direction Y, a set of first magnetic attraction devices 401 can be arranged at both ends of the chassis 120, Figure 3 a set of right side is shown, a set of left side can also be arranged.

[0054] As shown in Figure 1 and Figure 3 , the transport vehicle 000 can be arranged with a set of first magnetic attraction devices 401 near the air inlet 01, and can also be arranged with a set of first magnetic attraction devices 401 near the air inlet 01 and the air outlet 02 respectively.

[0055] Exemplarily, the support plate 500 can be made of a paramagnetic metal or alloy in part or as a whole, and the first magnetic attraction device 401 can be fixed on the support plate 500 by magnetic attraction. Alternatively, the first magnetic attraction device 401 can be fixed on the support plate 500 by other means such as adhesion or bolts.

[0056] Exemplarily, as shown in Figure 3 and Figure 4 , for the plurality of first magnetic attraction devices 401 in any set of first magnetic attraction devices 401, the plurality of first magnetic attraction devices 401 are arranged along the first direction X, and the first direction X intersects with the second direction Y, for example, is perpendicular.

[0057] The transport vehicle 000 can further include at least one first fixing seat 600 and at least one second fixing seat 700, the at least one first fixing seat 600 and the at least one second fixing seat 700 each corresponding to the at least one support plate 500; and the at least one first fixing seat 600 and the at least one second fixing seat 700 each being connected with the chassis 120.

[0058] Wherein, for any one support plate 500, and the corresponding first fixing seat 600 and the corresponding second fixing seat 700, the first fixing seat 600 and the second fixing seat 700 are arranged in the first direction X, one end of the support plate 500 is hung on the first fixing seat 600, and the other end of the support plate 500 is hung on the second fixing seat 700.

[0059] That is, the two ends of one support plate 500 are detachably connected to one first fixing seat 600 and one second fixing seat 700 by hanging, and the first fixing seat 600 and the second fixing seat 700 are integrally formed with the chassis 120 or fixedly connected or detachably connected with the chassis 120.

[0060] For example, one end of the support plate 500 has a first mortise and tenon structure 511, and the other end of the support plate 500 has a second mortise and tenon structure 521; the first fixing seat 600 has a third mortise and tenon structure 601 matched with the first mortise and tenon structure 511; and the second fixing seat 700 has a fourth mortise and tenon structure 701 matched with the second mortise and tenon structure 521.

[0061] Wherein, one end of the support plate 500 is hung on the first fixing seat 600 through the cooperation of the first mortise and tenon structure 511 and the third mortise and tenon structure 601, and the other end of the support plate 500 is hung on the second fixing seat 700 through the cooperation of the second mortise and tenon structure 521 and the fourth mortise and tenon structure 701.

[0062] In the embodiments of the present application, the support plate 500 can be conveniently hung on the first fixing seat 600 and the second fixing seat 700 through the mortise and tenon structure, and is detachably connected to the chassis 120, and when the transport vehicle 000 does not need to use the first magnetic attraction device 401, the support plate 500 can be detached from the chassis 120.

[0063] Please refer to Figure 3 , Figure 5 and Figure 6 , Figure 5 the structural schematic diagram of the first fixing seat provided in the embodiments of the present application, Figure 6 the structural schematic diagram of the second fixing seat provided in the embodiments of the present application, in some implementable modes, any one of the first fixing seat 600 and the second fixing seat 700 can include: a connecting part detachably connected with the chassis 120, and a supporting part fixedly connected with the connecting part; the connecting part is closer to the support frame 110 relative to the supporting part, and the supporting part has a hollow mounting cavity; wherein, the third mortise and tenon structure 601 or the fourth mortise and tenon structure 701 is fixed inside the hollow mounting cavity.

[0064] Exemplarily, the first fixing seat 600 can include a first connecting part 610 detachably connected with the bottom frame 120, and a first supporting part 620 fixedly connected with the first connecting part 610; the first connecting part 610 is closer to the support 110 relative to the first supporting part 620, and the first supporting part 620 has a first hollow mounting cavity 602; and the third mortise and tenon structure 601 is fixed inside the first hollow mounting cavity 602.

[0065] The second fixing seat 700 can include a second connecting part 710 detachably connected with the bottom frame 120, and a second supporting part 720 fixedly connected with the second connecting part 710; the second connecting part 710 is closer to the support 110 relative to the second supporting part 720, and the second supporting part 720 has a second hollow mounting cavity 702; and the third mortise and tenon structure 601 is fixed inside the second hollow mounting cavity 702.

[0066] In the embodiment of the present application, the support plate 500 can be symmetrically arranged, that is, the first mortise and tenon structure 511 and the second mortise and tenon structure 521 can be the same. At this time, the third mortise and tenon structure 601 and the fourth mortise and tenon structure 701 also correspond to the same, so that the first fixing seat 600 and the second fixing seat 700 can be the same fixing seat. By using the symmetrically arranged support plate 500, the design of the first fixing seat 600 and the second fixing seat 700 can be simplified, and the processing and design costs can be reduced.

[0067] Please refer to Figure 7 , Figure 7 The structural schematic diagram of the support plate provided in the embodiment of the present application. As shown in Figure 7 In the embodiment of the present application, the support plate 500 can include a first plate body 510 and a second plate body 520 arranged in the first direction X, the first end of the first plate body 510 and the first end of the second plate body 520 are detachably connected, the second end of the first plate body 510 is hung on the first fixing seat 600, and the second end of the second plate body 520 is hung on the second fixing seat 700.

[0068] Among the group of first magnetic attraction devices 401 corresponding to the support plate 500, part of the first magnetic attraction devices 401 are fixed on the first plate body 510, and the other part of the first magnetic attraction devices 401 are fixed on the second plate body 520.

[0069] As shown in Figures 3 to 7As shown, in order to facilitate the detachable connection of the support plate 500 on the first fixing seat 600 and the second fixing seat 700, the support plate 500 can adopt a split design, the first end of the first plate body 510 can have a first connecting structure 512 (such as a protrusion), and the first end of the second plate body 520 can have a second connecting structure 522 (such as a groove) matched with the first connecting structure 512. The first plate body 510 is detachably connected with the second plate body 520 through the first connecting structure 512 and the second connecting structure 522. In this way, the first end of the first plate body 510 can extend into the first hollow mounting cavity 602 of the first fixing seat 600, and the second end of the first plate body 510 can be hung on the first fixing seat 600; the first end of the second plate body 520 can extend into the second hollow mounting cavity 702 of the second fixing seat 700, and the second end of the second plate body 520 can be hung on the second fixing seat 700.

[0070] For example, the second end of the first plate body 510 can have a first mortise and tenon structure 511, the second end of the second plate body 520 can have a second mortise and tenon structure 521, the first fixing seat 600 has a third mortise and tenon structure 601, and the second fixing seat 700 has a fourth mortise and tenon structure 701. After the first end of the first plate body 510 extends into the first hollow mounting cavity 602 of the first fixing seat 600, the first mortise and tenon structure 511 on the second end of the first plate body 510 is hung on the third mortise and tenon structure 601 of the first fixing seat 600; after the first end of the second plate body 520 extends into the second hollow mounting cavity 702 of the second fixing seat 700, the second mortise and tenon structure 521 on the second end of the second plate body 520 is hung on the fourth mortise and tenon structure 701 of the second fixing seat 700.

[0071] Please refer to Figure 3 and Figure 8 , Figure 8 The second magnetic attraction device provided by the embodiment of the application and the structure diagram of the third fixing seat. In some implementable modes, the transport vehicle 000 can further include: a plurality of third fixing seats 800 detachably connected with the support 110, the plurality of third fixing seats 800 correspond to the plurality of second magnetic attraction devices 402, and each second magnetic attraction device 402 is fixed on a third fixing seat 800.

[0072] For example, the support 110 can include a plurality of horizontal rod structures and vertical rod structures, and the third fixing seat 800 can be detachably connected with the horizontal rod structures and the vertical rod structures by means of clamping, bolt connection, etc.

[0073] For example, the third fixing seat 800 has a plurality of clamping claws 801 on the side away from the second magnetic attraction device 402, and the third fixing seat 800 is clamped on the support 110 through the plurality of clamping claws 801. The clamping claws 801 can have elasticity and can be quickly clamped on the support 110 or quickly removed from the support 110.

[0074] As shown in Figure 3 The transport vehicle 000 can further include a plurality of pins 301 detachably connected to the carrying part 300 away from the support 110. The pins 301 can prevent the pole piece coil material 001 from falling off by being arranged on the carrying part 300. The pins 301 can be pulled out when the pole piece coil material 001 is loaded or unloaded, and the pins 301 can be inserted when the pole piece coil material 001 is transported.

[0075] As shown in Figure 3 The transport vehicle 000 can further include a plurality of limiting columns 121 detachably connected to the base frame 120 and located on the side of the first fixing seat 600 or the second fixing seat 700 away from the support 110. The limiting columns 121 can limit the positions of the first fixing seat 600 and the second fixing seat 700 on the base frame 120, so as to avoid the first fixing seat 600 or the second fixing seat 700 from falling off during the transportation of the pole piece coil material 001.

[0076] In summary, the transport vehicle provided by the present application includes a vehicle frame body, a plurality of wheels, at least one carrying part, and a plurality of magnetic attraction devices. The plurality of magnetic attraction devices arranged on the vehicle frame body of the transport vehicle can form a magnetic field coverage area around the transport vehicle. After the pole piece coil material is loaded onto the transport vehicle, the pole piece coil material is located in the magnetic field coverage area, and the magnetic attraction devices can adsorb metal dust. Therefore, during the process of loading the pole piece coil material onto the transport vehicle, moving the transport vehicle to the oven, and baking in the oven, the magnetic attraction devices can adsorb metal powder, prevent metal dust from falling on the pole piece, and avoid the pole piece from being contaminated. In this way, the cleanliness of the pole piece and the quality of the final product can be improved.

[0077] In the present application, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0078] The above description is only optional embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A transport vehicle, characterized in that The utility model relates to a kind of transport vehicles (000), including: Frame body (100), multiple wheels (200), at least one bearing part (300) and multiple magnetic attraction devices (400); The frame body (100) includes: underframe (120), and the support (110) is fixedly connected with one side of the underframe (120); The multiple wheels (200) are fixed on the side of the underframe (120) away from the support (110); The at least one bearing part (300) is fixed on the support (110), and the bearing part (300) is used to carry pole piece roll material (001); The multiple magnetic attraction devices (400) are connected with the frame body (100), and at least part of the multiple magnetic attraction devices (400) is distributed on the underframe (120).

2. The transport cart of claim 1, wherein, The multiple magnetic attraction devices (400) include: multiple first magnetic attraction devices (401) distributed on the underframe (120), and multiple second magnetic attraction devices (402) distributed on the support (110).

3. The transport cart of claim 2, wherein, The multiple first magnetic attraction devices (401) are divided into at least one group of first magnetic attraction devices (401);The transport vehicle (000) further includes at least one support plate (500), and the at least one support plate (500) corresponds to at least one group of the first magnetic attraction devices (401), each first magnetic attraction device (401) in a group of the first magnetic attraction devices (401) is fixed on the corresponding support plate (500), and the support plate (500) is detachably connected with the underframe (120); Wherein, the support plate (500) is closer to the support (110) relative to the first magnetic device fixed on the support plate (500).

4. The transport cart of claim 3, wherein, For multiple first magnetic attraction devices (401) in any group of the first magnetic attraction devices (401), multiple first magnetic attraction devices (401) are arranged along a first direction; The transport vehicle (000) further includes: at least one first fixing seat (600) and at least one second fixing seat (700), and the at least one first fixing seat (600) and the at least one second fixing seat (700) correspond to the at least one support plate (500);And the at least one first fixing seat (600) and the at least one second fixing seat (700) are connected with the underframe (120); Wherein, for any support plate (500), and corresponding first fixing seat (600) and corresponding second fixing seat (700), the first fixing seat (600) and the second fixing seat (700) are arranged in the first direction, one end of the support plate (500) is hung on the first fixing seat (600), and the other end of the support plate (500) is hung on the second fixing seat (700).

5. The transport cart of claim 4, wherein, One end of the support plate (500) has a first mortise and tenon structure (511), and the other end of the support plate (500) has a second mortise and tenon structure (521). The first fixed seat (600) has a third mortise and tenon structure (601) matched with the first mortise and tenon structure (511); the second fixed seat (700) has a fourth mortise and tenon structure (701) matched with the second mortise and tenon structure (521); One end of the support plate (500) is hung on the first fixed seat (600) through the cooperation of the first mortise and tenon structure (511) and the third mortise and tenon structure (601), and the other end of the support plate (500) is hung on the second fixed seat (700) through the cooperation of the second mortise and tenon structure (521) and the fourth mortise and tenon structure (701).

6. The transport cart of claim 5, wherein, Any one of the first fixed seat (600) and the second fixed seat (700) comprises a connecting part detachably connected with the chassis (120) and a supporting part fixedly connected with the connecting part; the connecting part is closer to the support frame (110) than the supporting part, and the supporting part has a hollow mounting cavity; The third mortise and tenon structure (601) or the fourth mortise and tenon structure (701) is fixed inside the hollow mounting cavity.

7. The transport cart of any of claims 4-6, wherein, The support plate (500) comprises a first plate body (510) and a second plate body (520) arranged in the first direction, a first end of the first plate body (510) is detachably connected with a first end of the second plate body (520), a second end of the first plate body (510) is hung on the first fixed seat (600), and a second end of the second plate body (520) is hung on the second fixed seat (700); Part of the first magnetic attraction devices (401) in a group of the first magnetic attraction devices (401) corresponding to the support plate (500) is fixed on the first plate body (510), and the other part of the first magnetic attraction devices (401) is fixed on the second plate body (520).

8. The transport cart of any of claims 2-6, wherein, The transport vehicle (000) further comprises a plurality of third fixed seats (800) detachably connected with the support frame (110), the plurality of third fixed seats (800) correspond to the plurality of second magnetic attraction devices (402), and each second magnetic attraction device (402) is fixed on one third fixed seat (800).

9. The transport cart of claim 8, wherein, The third fixed seat (800) has a plurality of clamping claws (801) on a side away from the second magnetic attraction device (402), and the third fixed seat (800) is clamped on the support frame (110) through the plurality of clamping claws (801).

10. The transport cart of any of claims 1-6, wherein, The magnetic attraction device (400) comprises a permanent magnet or an electromagnet.

Images